Scratch Start Tig .063" wall Sanitary Stainless Steel 6g welderskills settings

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WELD PROCESS = TIG, GTAW, GAS TUNGSTEN ARC WELDING,  

METAL TYPE = 304L STAINLESS STEEL

THICKNESS =  .063" 

WELD TYPE = GROOVE WELD NO BEVEL 

JOINT TYPE = BUTT

POSITION = 6G

AMPERAGE = 45 AMPS

TUNGSTEN = 2% LANTHANATED, 3/32"

FILLER WIRE = NONE autogenous

POLARITY = DCEN

GAS FLOW = 20 CFH argon

CUP SIZE =  7

ADDITIONAL SETTINGS =    5 CFH ARGON PURGE

PRE FLOW = TORCH VALVE

POST FLOW = TORCH VALVE

TIPS: KEEP A FAIRLY TIGHT ARC AND WATCH TORCH ANGLE

Aim for an arc length that is equal or less than the diameter of your tungsten electrode.

Torch angle can be forgiving provided your arc length is tight.  

Why scratch start tig?

The simplest and most portable tig welding set up is Scratch start TIG.

All you need is a DC welder, an air cooled tig torch with a valve, cylinder of argon, and flowmeter in order to have a scratch start tig rig.

But its not always the best option.


There are small inverter tig welders available that have features that allow tapering amperage without the need to snap out of the puddle which can be a great advantage when tig welding stainless steel sanitary tubing.

In the short video on this page, I used a DIY rectifier and old lincoln buzz box just to demonstrate what can be done with a very basic welder.

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